Nut-lock.



F. DESSAUER. NUT LOCK.

APPLiCATlON FILED MAR. 23 191B.

Patented Apr. 8, 1919.

[LQ HQ m t A I WITNESSES Pittsburgh, in the county of FREDERICK nnss'AUnR, or PITTSBURGH, rENNsYLv Anm. 1

NUT-LOCK.

To all wiwm it may concern:

Be it known that I, FREDERICK DEssAUER, a citizen of the United States, residing at Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in N ut-Locks, of which the following is a specification.

y invention consists in an improvement in nut locks of the class of washer locks, and has for its. object to provide a cheap,s1mple and eificient means for holding the nut of a bolt by corner engagement with an upturned portion of the device.

Generally stated, the invention comprises an integral piece of sheet or-plate metal preferably made of a low carbon steel, capable of 1 being easily bent, having a perforating bolt hole and a bearing portion for the nut, the washer plate being generally rectangular, and having one of its corner portions cut out in the manner hereinafter described, and adapted to be bent up into holding engagement with the corner of a nut, either square or hexagon. I

Referring to the drawings which lllustrate one preferred embodiment of the nvent on, Figure 1 is a view in side elevation showing the nut look as applied toa nut;

Fig. 2 is a plan View of Fig. l; p Fig. 3 is a plan view of the nutlocking washer detached; p r Fig. 4 is a similar View in perspective; Fig. 5 is a view in perspective partly broken away showing the corner of the plate bent up into holding positlon;

Fig. 6 is a plan view showing acomposlte locking strip provided with a plurallty of bolt holes and corresponding holding corner portions. 7

The nut locking washer, which is generally indicated by the latter a, comprlses a preferably rectangular piece of plate or sheet metal adapted to be laid flatwise upon the surface of any article with which the bolt and nut are used, and provided at any desired portion of the plate with a perforated bolt hole 2. V

One or more corner portions of the plate a, sufliciently adjacent to the bolt hole 2 to operatively engage the corner of the nut 3, when bent up, is provided with a generally triangularly shaped apertured cut out of the metal. Said aperture is bounded within the inner edges 5, 5, arranged generally at right angles to each other .and substantially parallel to the end edge 6 and side edge 7 ofthe Specification of Letterslatent. Application filed March 23,

tight indicated in Fig. 5.

When set up tightly against the nut, as indicated in :Figs. 1 and 2, the edges 5, 5, of

1918. Serial No. 224,342.

Washer plate, and the inner diagonally arranged edge 8. The outer converging corner of the trianglethus formed is enlarged by a nioreacute pointed opening9, defined within corner. of the arrangement row converging angular acute openlngr In applying the nut lock to use, "it is located over the bolt, the nut plate, and, providing by 'their Patented A 51 3", 1919.

p p is screwed up withits corner located in operative I,

feo' converging edges 1O, 10, disposed toward the with themain aperture, a narrelation tothe corner opening of the plate,

which portion is then bent ,upwardly by any suitable tool,'as a cold chiselor. swage, as

the opening 4 will be brought into'approximately close contact with the adjacent faces of the nut '3, whether the .nut s square or hexagon. 7 "The more acute terminal opening 9 and its edges 10 are bent directly into. close, tight, binding-engagement with the upper edge portion of the'nut, closely embracing and positivelyholding thenut against movement in either directlon.

Ifit is desired to unscrew the nut or'furthertighten it, the cor ner may be depressed away and again bent upwardly, adjusted.

from engagement when'the nut is re In- Fig. 6 I have shown the same generalf arrangement as tosthe operative elements of thedevice, but in a continuous strip form L having a plurality of bolt holes 2', suitably located, as to distance apart throughout the continuous strip a and between each pair of adjacent holes the strip is by an edge opening 11. By I provide-the corner element'which is aperpartly separated this construction,

tured in the same manner as above described,

each corner being thus capable of independent adjustment in the Otherwise, the nut lock is substantially." the same as the single form, and provides a continuous integral one piece lock. adapted for application to a seriesof bolts in a row, as in the case of the-bolts of joint. f a Y 1 v The advantage of the invention will be readily understood and those familiar with this vices, and is capable of performing its 7 ins manner set forth.

an ordinary? rail b appreciated y all 7 class ofholding debeing made atlow vcost with 'a comparatively small amount of waste material and of tended functions .in a highly efliecient man- 7 co'isrs of this tat'emana Be obtained for five ing nut-engaging edges at substantially right angles to each other and terminating 111 more acute angular inner terminal edges adapted "to be turned up to engage the corner of a nut.

3. A nut locking Washer plate having a pluralityof bolt holes, partly severed atone edge portion between the bolt holes providing corner members, said corner members each having a substantially triangular opening and adapted to be bent up into'holding engagement With the corner of a nut.

In testimony whereof 'I hereunto aflix my signature. ,g, Y

FREDERICK 'DESSAUER.

cents each, li'y'addre sshig wew'cmmissmnero: Yafe'nts,

Washington, D. 0. 

